Bug 778752 – often but not always gvfsd-smb-browse gets stuck on login

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Bug 778752 - often but not always gvfsd-smb-browse gets stuck on login


Summary:	often but not always gvfsd-smb-browse gets stuck on login


Status:	RESOLVED NOTGNOME

Product:	gvfs
Classification:	Core
Component:	smb backend
Version:	1.31.x
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	---
Assigned To:	gvfs-maint
QA Contact:	gvfs-maint

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2017-02-16 09:50 UTC by Hussam Al-Tayeb
Modified:	2017-02-21 21:21 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Hussam Al-Tayeb 2017-02-16 09:50:35 UTC

Sometimes on first login (for example now after I rebooted for a kernel update), after I open nautilus and go to other locations, I see this.
https://i.imgur.com/GDWy10j.png
it gets stuck permanently like that.
Then after I kill gvfsd-smb-browse, the 'windows network' icon appears and the spinner stops. there are no windows networks I can browse but it would be nice if it didn't get stuck.


(gdb) thread apply all bt

+ Trace 237145

Thread 5 (Thread 0x7f2ea5037700 (LWP 1054))

#0 sigsuspend
#1 tdb_runtime_check_for_robust_mutexes
#2 tdb_wrap_open
#3 0x00007f2eb4e49b21 in
#4 gencache_parse
#5 gencache_get_data_blob
#6 gencache_get
#7 sitename_fetch
#8 resolve_name
#9 0x00007f2eb762a5e2 in
#10 do_mount
at gvfsbackendsmbbrowse.c line 913
#11 g_vfs_job_run
at gvfsjob.c line 197
#12 g_thread_pool_thread_proxy
at gthreadpool.c line 307
#13 g_thread_proxy
at gthread.c line 784
#14 start_thread
#15 clone

Comment 1 Ondrej Holy 2017-02-17 07:40:18 UTC

Thanks for your report.

This is probably the following race condition in samba:
https://lists.samba.org/archive/samba-technical/2016-March/113109.html

I haven't read the whole thread, but some patches are attached there, so it might be already fixed. Closing as NOTGNOME, but please let us know if you find anything relevant...

Comment 2 Hussam Al-Tayeb 2017-02-17 10:10:40 UTC

The patches do not apply to common/mutex.c in tdb 1.3.12 
According to https://lists.samba.org/archive/samba-technical/2016-March/113269.html, the fix was included in a new release. The latest release according to https://www.samba.org/ftp/tdb/ is 1.3.12 so I will file a bug report today at samba's bug tracker and post the bug id here in case you are interested.
Thank you very much for your help.

Comment 3 Ondrej Holy 2017-02-17 10:41:55 UTC

Thanks!

Comment 4 Hussam Al-Tayeb 2017-02-21 21:21:42 UTC

I forgot to post the link here https://bugzilla.samba.org/show_bug.cgi?id=12593 
Sorry.